A special A group of electric motors is represented by machines designed to work in areas with an environment containing explosive mixtures. These include three -phase asynchronous electric motors of the series B, which are widely used at the objects of the chemical, coal, oil and gas industries. Separate models can work in stationary conditions or on mobile equipment. The scope of such engines is regulated by the relevant GOST (in particular GOST R 513 30-5) and separate regulatory rules.
Series E electric motors are connected to a voltage of 380 or 660 V (with different phases connection-" triangle "or" star ") With alternating current frequency 50-60 Hz. Engines are produced in various climatic executions and are designed for temperatures from -40 to +40 ° C.
electric motors in the series designed for a long-term operating mode, however If necessary, can be used for S2-7 modes (short-term or interspersent).
explosion safety of electric motors series in is ensured by using a special explosive external shell made of persistent materials, high -quality insulating protection of windings and reliable cooling carried out by its own built -in fan.
| Motor | |
| Power kW | 55 |
| Frequency rpm | 1500 |
